Dental suction plate



March 3,' 1931. K. HEITMULLER DENTAL SUCTION PLATE Filed Jan. 14, 1927 ii we]: for. MM #1121?! Z er Patented Mar. 3, 1931 V UNITED STATES KARL HEITMTILLER, OF GOTTINGEN; GERMANY DENTAL SUCTION PLATE Application filed January 14, 1927, Serial No.

This invention has reference to suction plates of rubber and the like for the fastening of artificial teeth to the gums, and it is intended to devise means whereby a better fitting and accommodation of such plates to the gums than heretofore and a more satisfactory suctional action may be obtained.

other important objects in lVith these and View which will appear asthe specification i proceeds and from an inspection of the drawings the invention in its broad aspects comprises a suctional plate of the kind referred to and provided at its edges with a raised marginal part adapted to produce a high degree of suctional adhesion, and with a substantially centrally disposed aperture for the mounting of the plate upon a knob, button or the like of the gum-plate.

In further pursuance of my invention the broad novelty thereof comprises the combination of the outwardly bent rim with interior ribs, adapted to produce a plurality of suctional sockets between the several ribs whereby the adhesion of the plate is increased. According to another feature of the invention the suction plate is marginally bevelled off, so as to avoid excessive thickness of the outwardly bent edges and the occurrence of pressure marksat the gums. The raised portions and the ribs on the gum side of the plate terminate in a sharp edge, so as to insure tight adhesion to the gums.

The invention will be more fully described with reference to the accompanying drawing, showing by way of exemplification various embodiments thereof on a scale, substantially double their natural size.

In Figures 1 and 2 the invention is shown of round shape and respectively in transverse section and'in plan view. Figures 3 and 4: are modifications of substantially rectangular or oblong shape.

In the form of construction according to Figures 1 and 2 of the drawing the edge of '1 the substantially flat disc at is upwardly bent,

so as to produce a marginally raised portion 7) provided with a sharp outer edge 6 and with a bevelled off bottom portion (1. Inasmuch as this marginal rib is bevelled off on both sides it presents a substantially wedge- 161,086,2md s Germany January 26, 1926.

shaped edge portion, as shown in the drawings, tliereby greatly assisting the security againstleakageof the suction plate. Con centrically disposed withrelation to the edge portion 6 is an annular rib e, likewise terminating in a sharp preferably likewise substantially wedge-shaped outer edge 6 These two raised members or ribs 12 and e are connected by radially disposed ribs 6 so as to form suction sockets s; and these connecting ribs 0 are likewise provided with sharp edges.

The exterior projecting ridge 1) may for instance have a height of millimeter (about 0.02 inch), and the interior ribs 6 and 6 may be somewhat lower and narrower than the outer ridge.

Inthe modified construction according to Figures 3 and 4 the same letters are used for parts equivalent with those of Figures 1 and 70 2, there being the difference, however, that the general shape of the plate is substantial- 1y rectangular or oblong and the inner ribs e are transversely disposed, a substantially central or longitudinally disposed rib e in this modification being arranged at the wing portions of the plate and subdividing the space between the rib e and the ridge Z) into the suction sockets s, so as to produce altogether four of such sockets, while in the form of construction of Figures 1 and 2 twelve such sockets are obtained. But it is obvious that the number of sockets 3 may also be increased in the modification according to Figurge 4 by increasing the number of subdividing 5335 r1 5 6 7 indicates the central aperture for the mounting of the plate on the knob or button of the gum plate for the upper and lower It should, of course be understood that the invention isnot restricted to the particular shape of the plates and ribs and their relative arrangements, but alterations and changes may occur without departing from the scope of the invention, except as otherwise appears from the appended claims.

I claim 1. In a flexible dental suction plate, an outwardly flaring, substantially cross-sectional- 1y diamond-shaped projecting peripheral rim, a substantially centrally disposed open section on said plate, and outwardly sharp ened partitions lining the projecting part of the rim'at the inside thereof and spacedly intersecting the same and of less height than the rim. V i

2. In a flexiblesuctionplate, an outwardly flaring, cross-sectionally substantially dia- 10 mond-shaped-and marginally sharpened peripheral rim of resilient material a substa rtially centrally disposed open section of the same material on said plate, resilient.:;p.artitions on 'saidplate at the outer part of the i 15 open sectional-1d spacedly intersecting -the rim andsharpened top portions on the parti- .tions-a'nd on therim.

1 fl'ntestimonywhereofI'afli signature.

. l -KARL ;-H TMU L R.. 

